| 1 | = Calculating Lever Arms = |

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| 3 | Data usually goes in ~arsf/arsf_data/YYYY/misc/plane_survery_<month>/ |

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| 5 | Stirling Surveys usually provide two things: |

| 6 | * *coordinates.xls - a spreadsheet giving the xyz of each point |

| 7 | * dornier_228_*.(dwg|pdf) - a digram of all the points in space |

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| 9 | The coordiantes are relative to the rear gps antennae and are positive up, to port and to nose. |

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| 11 | The file working_out.txt shows the logic an calculations I used to get the final values that go on the wiki. |

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| 13 | The speadsheet calculate_leverarms.ods has the formulas used above in-built, so you can put the new values into it and it will calculate the values to go on the wiki for you (make sure to use a copy from the most recent survery so it has the Owl for instance). |

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